If 3uTools shows "Unable to request SHSH" or becomes stuck at the top while requesting SHSH blobs, follow these steps:
Before troubleshooting, you must understand one crucial rule: Apple must still be "signing" the firmware version you are trying to install.
Work through these solutions in order. Stop when the error disappears. how to fix error unable to request shsh on 3utools when top
Ensure you're running the latest version of 3uTools:
This tutorial assumes you’re using 3uTools to save SHSH blobs or perform operations and you see an error like “unable to request SHSH” (or similar) while the device is at the Apple logo / stuck on “Top” / boot loop. Follow these steps in order — each step is concise and prescriptive. If 3uTools shows "Unable to request SHSH" or
This is the number one cause of SHSH errors. If you have ever used "TinyUmbrella" or other jailbreak tools in the past, your computer might be redirecting Apple-related web addresses (like gs.apple.com) to a local server or a Cydia server instead of Apple’s official servers. 3uTools requires a direct line to Apple to fetch the SHSH.
How to fix it:
Note for Windows 10/11 Users: Sometimes the hosts file is hidden or protected. Ensure you have "Hidden items" checked in the View tab of File Explorer.
Before diving into fixes, you need to understand the terminology. Work through these solutions in order
SHSH blobs (Signature HaSH blobs) are digital signatures from Apple that allow a specific version of iOS to be installed on a specific device. Apple only signs the latest iOS version for most devices. When you try to restore or downgrade, 3uTools asks Apple’s servers for permission. If Apple refuses (because the version is no longer signed), 3uTools returns the "Unable to request SHSH" error.